Daikin MKS-T Series Service Manual page 4

6. Troubleshooting for MSP Duct Type Indoor Unit ................................127
7. Troubleshooting for Outdoor Unit........................................................138
8. Check ..................................................................................................169
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5.3 Indoor Fan Motor or Related Abnormality ............................................119
5.4 Thermistor or Related Abnormality (Indoor Unit)..................................123
5.5 Signal Transmission Error (Between Indoor Unit and Outdoor Unit)....124
5.6 Unspecified Voltage (Between Indoor Unit and Outdoor Unit) .............126
6.1 Indoor Unit PCB Abnormality ...............................................................127
6.2 Drain Water Level Control System Abnormality ...................................128
6.3 Indoor Fan Motor or Related Abnormality ............................................129
6.4 Fan PCB Abnormality...........................................................................131
6.5 Drain System Abnormality....................................................................132
6.6 Thermistor or Related Abnormality.......................................................133
6.7 Remote Controller Thermistor Abnormality ..........................................134
6.8 Signal Transmission Error (Between Indoor Unit and Remote Controller)
.............................................................................................................135
6.9 Signal Transmission Error (Between MAIN Remote Controller and SUB
Remote Controller) ...............................................................................136
6.10 Field Setting Abnormality .....................................................................137
7.1 Refrigerant Shortage ............................................................................138
7.2 Low-voltage Detection or Over-voltage Detection................................140
7.3 Wiring Error Check Unexecuted...........................................................142
7.4 Signal Transmission Error (on Outdoor Unit PCB)...............................143
7.5 Unspecified Voltage (Between Indoor Unit and Outdoor Unit)/Anti-icing
Function in Other Rooms .....................................................................144
7.6 Anti-icing Control for Indoor Unit ..........................................................145
7.7 Outdoor Unit PCB Abnormality.............................................................147
7.8 OL Activation (Compressor Overload) .................................................148
7.9 Compressor Lock .................................................................................150
7.10 DC Fan Lock ........................................................................................151
7.11 Input Overcurrent Detection .................................................................152
7.12 Discharge Pipe Temperature Control...................................................153
7.13 High Pressure Control in Cooling .........................................................154
7.14 System Shutdown due to Temperature Abnormality in Compressor ...156
7.15 Compressor System Sensor Abnormality ............................................157
7.16 Position Sensor Abnormality ................................................................158
7.17 CT or Related Abnormality ...................................................................160
7.18 Thermistor or Related Abnormality (Outdoor Unit)...............................162
7.19 Electrical Box Temperature Rise..........................................................164
7.20 Radiation Fin Temperature Rise ..........................................................165
7.21 Output Overcurrent Detection ..............................................................167
8.1 Thermistor Resistance Check ..............................................................169
8.2 Indoor Fan Motor Connector Check .....................................................170
8.3 Hall IC Check .......................................................................................171
8.4 Power Supply Waveform Check...........................................................172
8.5 Electronic Expansion Valve Check.......................................................172
8.6 Inverter Unit Refrigerant System Check...............................................173
8.7 Inverter Analyzer Check .......................................................................173
8.8 Rotation Pulse Check on the Outdoor Unit PCB ..................................175
8.9 Installation Condition Check.................................................................176
8.10 Discharge Pressure Check...................................................................176
8.11 Outdoor Fan System Check .................................................................177
SiSG121917E
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